Patents by Inventor Kenneth J. Stoneburg

Kenneth J. Stoneburg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Ladder leveling arrangement
    Patent number: 6435306
    Abstract: A pair of ladder leveler members attach to the base portion of the side rails of an extension ladder. Each leveler member has a sleeve that is mounted to the respective rail parallel to the rail, and a slide leg that is movable in the sleeve. The ladder swing feet may be mounted to the base of the legs. There are pin holes in the sleeves and in the slide legs that align with one another, and a retaining pin locks the slide leg into position. The ladder leveler allows the ladder to be set plumb, even when the ground is uneven. The sleeves and legs may be C-channel members of rectangular section.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: August 20, 2002
    Inventor: Kenneth J. Stoneburg
  • Ladder leveling arrangement
    Publication number: 20020007981
    Abstract: A pair of ladder leveler members attach to the base portion of the side rails of an extension ladder. Each leveler member has a sleeve that is mounted to the respective rail parallel to the rail, and a slide leg that is movable in the sleeve. The ladder swing feet may be mounted to the base of the legs. There are pin holes in the sleeves and in the slide legs that align with one another, and a retaining pin locks the slide leg into position. The ladder leveler allows the ladder to be set plumb, even when the ground is uneven. The sleeves and legs may be C-channel members of rectangular section.
    Type: Application
    Filed: April 2, 2001
    Publication date: January 24, 2002
    Inventor: Kenneth J. Stoneburg